Blacklist wildcard fails on URLs with CaPs

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1

Wildcard blacklist entries fail to block DNS queries if the URL includes capital letters. Seems like this would provide an easy way for malicious apps to bypass pi-hole. For example, here's what it I see in my query log:

TraCkeR.example.com Pi-holed (wildcard) /in red font
example.com Pi-holed (wildcard) /in red font
TRacKer.eXaMple.Com OK /in green font
tracker.exampLe.com OK /in green font

I discovered this when one of my kids downloaded a torrent file...

2

Thanks for your report. However, what you have found is not what you think:

Yes, the Query Logs show that those requests have been permitted, but they actually haven't. It is the Query Log page that fails showing the correct status here, not the Pi-hole itself (it will still block those domains).

The issue will be solved with our upcoming FTL backend, which improves performance and accuracy by a lot!

Exemplary screenshot:

upload.png1248×142 15 KB